package com.example.demo.file.ftp;

import com.sun.image.codec.jpeg.JPEGCodec;

import com.sun.image.codec.jpeg.JPEGImageEncoder;

import java.io.BufferedOutputStream;

import java.io.FileOutputStream;

import java.awt.image.BufferedImage;

import java.awt.*;

/**

 * Created by IntelliJ IDEA.

 * User: Administrator

 * Date: 2005-6-10

 * Time: 11:19:49

 * This class can create jpg picture.

 * To change this template use File | Settings | File Templates.

 */

public class ChartGraphics {

    BufferedImage image;

    void createImage(String fileLocation) {

        try {

            FileOutputStream fos = new FileOutputStream(fileLocation);

            BufferedOutputStream bos = new BufferedOutputStream(fos);

            JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(bos);

            encoder.encode(image);

            bos.close();

        } catch (Exception e) {

            e.printStackTrace();

        }

    }

    public void graphicsGeneration(int h1, int h2, int h3, int h4, int h5) {

        final int X = 10;

        int imageWidth = 300;//图片的宽度

        int imageHeight = 300;//图片的高度

        int columnWidth = 30;//柱的宽度

        int columnHeight = 200;//柱的最大高度

// ChartGraphics chartGraphics = new ChartGraphics();

        image = new BufferedImage(imageWidth, imageHeight, BufferedImage.TYPE_INT_RGB);

        Graphics graphics = image.getGraphics();

        graphics.setColor(Color.white);

        graphics.fillRect(0, 0, imageWidth, imageHeight);

        graphics.setColor(Color.red);

        graphics.drawRect(X + 1 * columnWidth, columnHeight - h1, columnWidth, h1);

        graphics.drawRect(X + 2 * columnWidth, columnHeight - h2, columnWidth, h2);

        graphics.drawRect(X + 3 * columnWidth, columnHeight - h3, columnWidth, h3);

        graphics.drawRect(X + 4 * columnWidth, columnHeight - h4, columnWidth, h4);

        graphics.drawRect(X + 5 * columnWidth, columnHeight - h5, columnWidth, h5);

        createImage("D://chart.jpg");

    }

    public static void main(String[] args) {

        int[] height = {40,50,16,22,85};

        ChartGraphics cg=new ChartGraphics();

        try {

            for (int i = 0; i < 5; i++) {

                cg.graphicsGeneration(height[0],height[1],height[2],height[3],height[4]);

            }

        } catch (Exception e) {

            e.printStackTrace();

        }

    }

}
